Prevent clogs that wear the bit and slow down drilling when it gets jammed. The flutes on these bits have an open design that pulls chips out of the hole faster than standard spiral flutes. Also known as pole or ship auger bits, they are used to cut deep holes through lumber, railroad ties, and utility poles.

Round Shank—Fit in the chuck of drill presses and portable drills.

Tapered-Square Shank—Use with manual hand drills. You can cut off the square portion to expose a round shank to fit other tools.

Screw Point—Draws the bit into the material without the need to apply a lot of pressure.